Answer: Option C
Step-by-step explanation:
From the given condition, W(weight) is a function of C(calories), that is, the value of W is highly dependent on the value of C. In this case, C, is the independent variable and W is the dependent variable. Option C is more correct than other options because the question did not state if increasing C or decreasing C means we havw an increasing W or decreasing W, it only stated that W is. function of C.
Hence when an average of 1850 of calories is consumed, the resulting weight is 158pounds.
Answer:
7.5
Step-by-step explanation:
Answers:
4; 20; 3x² - 4x + 3; 52; 17
Step-by-step explanation:
f(-1): replace x in f(x) = x² + 3 with -1: f(-1) = (-1)² + 3 = 4
f(-4) + g(-1) = (-4)² + 3 + <em>2(-1) + 3</em> = 16 + 3 <em>- 2 + 3</em> = 20 <em>(since g(x) = 2X + 3)</em>
<em />
3f(x) - 2g(x) = 3[x² +3] - 2[2x + 3} = 3x² + 9 - 4x - 6 = 3x² - 4x + 3
f(g(2)): First, evaluate g(2). It is g(2) = 2(2) + 3 = 7. Next, use this output, 7, as the input to f(x): f(g(x)) = (7)² + 3 = 49 + 3 = 52
g(f(2)): First, evaluate f(x) at x = 2: f(2) = (2)² + 3 = 7. Next, use this 7 as the input to g(x): g(f(2)) = g(7) = 2(7) + 3 = 17
There it goess☝☝,but remember negative numbers are on the left!
